Managers of a sports arena's parking garage keep track of the duration of time customers park their cars in the garage. Shown in the stem-and- leaf display below is a sample of such parking durations (in minutes). For this sample, 22 of the durations were from weekday use of the garage, and 25 were from weekend use. Answer the questions that follow. Parking durations (minutes) Weekday Weekend 8 7 7 4 1 986 53 9 8 8 8 6 100 730 15 4589 16 4 4 6 6 6 79 17 00003345 18 3799 6 19 48 Key: 151 1| 15 4 154 (a) What were the ranges of parking durations for the two groups? Weekday Weekend (b) Which group had the higher median parking duration? Weekday Weekend The medians were the same (c) Which group had more parking durations in the 170s? Weekday Weekend Each had the same X G